<template>
  <div>
    <!-- 面包屑导航区域 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片视图区域 -->
    <el-card>
      <!-- 搜索与添加区域 -->
      <el-row :gutter="20">
        <el-col :span="7"
          ><el-input
            placeholder="请输入内容"
            v-model.trim="querInfo.query"
            clearable
            @clear="getUserList"
          >
            <el-button
              slot="append"
              icon="el-icon-search"
              @click="getUserList"
            ></el-button> </el-input
        ></el-col>
        <el-col :span="4">
          <el-button type="primary" @click="addDialogVisible = true"
            >添加用户</el-button
          >
        </el-col>
      </el-row>
      <!-- 用户列表区域 -->
      <el-table :data="userList" :border="true" stripe>
        <el-table-column type="index" label="#"></el-table-column>
        <el-table-column label="姓名" prop="username"></el-table-column>
        <el-table-column label="邮箱" prop="email"></el-table-column>
        <el-table-column label="电话" prop="mobile"></el-table-column>
        <el-table-column label="角色" prop="role_name"></el-table-column>
        <el-table-column label="状态">
          <!-- 用作用域插槽来实现 -->
          <template slot-scope="scope">
            <el-switch
              v-model="scope.row.mg_state"
              @change="userStateChanged(scope.row)"
            ></el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作" width="180px">
          <template slot-scope="scope">
            <!-- 修改按钮 -->
            <el-button
              type="primary"
              icon="el-icon-edit"
              size="mini"
              @click="showEdtDialog(scope.row.id)"
            ></el-button>
            <!-- 删除按钮 -->
            <el-button
              type="danger"
              icon="el-icon-delete"
              size="mini"
              @click="removeUserById(scope.row.id)"
            ></el-button>
            <!-- 分配按钮 -->
            <el-tooltip
              effect="dark"
              content="分配角色"
              placement="top"
              :enterable="false"
            >
              <el-button
                type="warning"
                icon="el-icon-setting"
                size="mini"
                @click="setRose(scope.row)"
              ></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>
      <!-- 分页功能 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="querInfo.pagenum"
        :page-sizes="[1, 2, 5, 10]"
        :page-size="querInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
      >
      </el-pagination>
    </el-card>
    <!-- 添加用户对话框 -->
    <el-dialog title="添加用户" :visible.sync="addDialogVisible" width="40%"  @close="addDialogClosed">
      <!-- 添加用户对话框的主题区域 -->
      <el-form
        :rules="addFormRules"
        ref="addFormRef"
        :model="addForm"
        label-width="70px"
      >
        <el-form-item label="用户名" prop="username">
          <el-input v-model="addForm.username"></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input v-model="addForm.password"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="addForm.email"></el-input>
        </el-form-item>
        <el-form-item label="电话" prop="mobile">
          <el-input v-model="addForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <!-- 添加用户对话框的底部区域 -->
      <span slot="footer" class="dialog-footer">
        <el-button @click="addDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="addUser"
          >确 定</el-button
        >
      </span>
    </el-dialog>
    <!-- 修改用户对话框 -->
    <el-dialog
    title="修改用户"
    :visible.sync="editDialogVisible"
    width="50%"
    @close="editDialogClosed">
  <!-- 表单显示内容 -->
  <el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="70px">
  <el-form-item label="用户名" >
    <el-input v-model="editForm.username" disabled></el-input>
  </el-form-item>
  <el-form-item label="邮箱" prop="email" >
    <el-input v-model="editForm.email" ></el-input>
  </el-form-item>
  <el-form-item label="手机" prop="mobile">
    <el-input v-model="editForm.mobile" ></el-input>
  </el-form-item>
  </el-form>

  <span slot="footer" class="dialog-footer">
    <el-button @click="editDialogVisible = false">取 消</el-button>
    <el-button type="primary"  @click="editUserInfo">确 定</el-button>
  </span>
  </el-dialog>

  <!-- 分配角色的对话框 -->
  <el-dialog
  title="分配角色"
  :visible.sync="setRoseDialogVisible"
  width="50%"
  @close="setRoleDialogClosed"
 >
 <div>
  <p>当前的用户：{{userInfo.username}}</p>
  <p>当前的角色：{{userInfo.role_name}}</p>
  <p>分配新角色：
    <el-select v-model="selectedRoleId" placeholder="请选择">
    <el-option
      v-for="item in rolesList"
      :key="item.id"
      :label="item.roleName"
      :value="item.id">
    </el-option>
  </el-select>
  </p>
 </div>
  <span slot="footer" class="dialog-footer">
    <el-button @click="setRoseDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="saveRoleInfo()">确 定</el-button>
  </span>
</el-dialog>
  </div>
</template>

<script>
export default {
  data () {
    /* 验证邮箱的规则 */
    /* eslint-disable */
    var checkEmail = (rule, value, cb) => {
      const regEmail =
        /^(([^<>()[\]\\.,;:\s@"]+(\.[^<>()[\]\\.,;:\s@"]+)*)|(".+"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$/
      if (regEmail.test(value)) {
        /* 合法的邮箱 */
        return cb()
      }

      cb(new Error('请输入合法的邮箱'))
    }
    /* 验证电话号码的规则 */
    /* eslint-disable */
    var checkMobile = (rule, value, cb) => {
      const regMobile = /^(?:(?:\+|00)86)?1[3-9]\d{9}$/
      if (regMobile.test(value)) {
        /* 合法的手机号 */
        return cb()
      }

      cb(new Error('请输入合法的手机号'))
    }
    return {
      /* 获取用户列表的参数对象 */
      querInfo: {
        /* 查询参数 */
        query: '',
        /* 当前的页数 */
        pagenum: 1,
        /* 当前每页显示多少条数据 */
        pagesize: 2,
      },
      userList: [],
      total: 0,
      addDialogVisible: false,
      /* 添加用户的表单数据 */
      addForm: {
        username: '',
        password: '',
        email: '',
        mobile: '',
      },
      /* 添加表单的验证规则对象 */
      addFormRules: {
        username: [
          { required: true, message: '请输入用户名', trigger: 'blur' },
          {
            min: 3,
            max: 10,
            message: '用户名的长度在 3 到 10 个字符',
            trigger: 'blur',
          },
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          {
            min: 6,
            max: 15,
            message: '密码的长度在 6 到 15 个字符',
            trigger: 'blur',
          },
        ],
        email: [{ required: true, message: '请输入邮箱', trigger: 'blur' },{validator:checkEmail , trigger: 'blur'}],
        mobile: [
          { required: true, message: '请输入手机号码', trigger: 'blur' },{validator:checkMobile , trigger: 'blur'}
        ],
      },
      //控制修改用户对话框的显示与隐藏
      editDialogVisible: false,
      //查询到的用户信息对象
      editForm: {},
      //修改表单的验证规则对象
      editFormRules: {
        email: [
        { required: true, message: '请输入用户邮箱', trigger: 'blur' },
        {validator:checkEmail , trigger: 'blur'}
        ],
        mobile: [
        { required: true, message: '请输入用户手机号码', trigger: 'blur' },{validator:checkMobile , trigger: 'blur'}
        ]
      },
      // 控制 分配角色 对话框的显示与隐藏
      setRoseDialogVisible: false,
      //需要被分配的用户信息
      userInfo: {},
      // 所有的角色数据列表
      rolesList: [],
      //已选中的角色id值
      selectedRoleId : ''
    }
  },
  created() {
    this.getUserList()
  },
  methods: {
    /* 发起用户列表数据请求 */
    async getUserList() {
      const { data: res } = await this.$http.get('users', {
        params: this.querInfo,
      })
      if (res.meta.status !== 200) return this.$message.error(res.meta.msg)
      this.userList = res.data.users
      this.total = res.data.total
    },
    /* 监听pagessize 改变事件 */
    handleSizeChange(newSize) {
      this.querInfo.pagesize = newSize
      this.getUserList()
    },
    /* 监听 页码值 改变事件 */
    handleCurrentChange(newPage) {
      this.querInfo.pagenum = newPage
      this.getUserList()
    },
    /* 监听switch 开关按钮 */
    async userStateChanged(userInfo) {
      const { data: res } = await this.$http.put(
        `users/${userInfo.id}/state/${userInfo.mg_state}`
      )
      if (res.meta.status !== 200) {
        userInfo.mg_state = !userInfo.mg_state
        return this.$message.error('修改状态失败')
      }
      this.$message.success('更新状态成功')
    },
    /* 监听对话框取消按钮 （清空表单内容） */
    addDialogClosed() {
      this.$refs.addFormRef.resetFields()
    },
    /* 点击确定按钮，添加新用户 */
    addUser() {
      this.$refs.addFormRef.validate(async valid => {
        // console.log(valid);
        if (!valid) return
        //可以发起添加用户请求
      const {data:res} = await this.$http.post('users',this.addForm )
      // console.log(res);
        if (res.meta.status !== 201) return this.$message.error('用户创建失败') 
        this.$message.success(res.meta.msg)
        // 隐藏添加的表单框
        this.addDialogVisible = false
        // 重新获取列表数据
        this.getUserList()
      })
    },
    //展示编辑用户的对话框
   async showEdtDialog(id) {
    const { data: res } = await this.$http.get('users/' + id)
    // console.log(res);
    if(res.meta.status !==200) return this.$message.error('查询用户信息失败')
    this.editForm = res.data
    this.editDialogVisible = true
    },
    //监听修改对话框的关闭事件
    editDialogClosed() {
      this.$refs.editFormRef.resetFields()
    },
    //修改对话框修改用户的信息 编辑用户提交
   editUserInfo() {
     this.$refs.editFormRef.validate(async valid => {
       if (!valid) return
      // 发起修改用户的请求
       const { data: res } = await this.$http.put('users/' + this.editForm.id, { email: this.editForm.email, mobile: this.editForm.mobile })
      if(res.meta.status !==200) return this.$message.error('更新用户信息失败')
      //关闭对话框
      this.editDialogVisible = false
      //刷新数据列表
       this.getUserList()
      //提示用户修改成功
      this.$message.success('更新用户信息成功')
    })  
    },
    //根据ID删除用户信息功能
   async removeUserById(id) {
      //弹框询问是否删除数据
    const confirmResult = await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
    }).catch(err => err)  
      //如果用户确认删除 则返回字符串 confirm
      //如果用户取消了删除 则返回字符串 cancel
        // console.log(confirmResult);
        if(confirmResult !== 'confirm')  return this.$message.info('已取消删除')
       const {data:res} = await this.$http.delete('users/' + id)
       if(res.meta.status !==200) return this.$message.error('删除用户失败！')
       this.$message.success('删除用户成功！')
       this.getUserList()
    },
    //点击展示分配权限按钮
   async setRose(userInfo) {
      this.userInfo = userInfo
      // 展示对话框之前 获取所有角色的列表
     const { data: res } = await this.$http.get('roles')
     if(res.meta.status !==200) return this.$message.error('获取失败！')
     this.rolesList = res.data
      console.log(this.rolesList);
      this.setRoseDialogVisible = true
    },
    //点击按钮 分配角色
   async saveRoleInfo() {
    if(!this.selectedRoleId) return this.$message.error('请选择要分配的角色')
     const { data: res } = await this.$http.put(`users/${this.userInfo.id}/role`, { rid: this.selectedRoleId })
     if (res.meta.status !== 200) return this.$message.error('设置角色失败！')
     this.getUserList()
     this.$message.success('更新角色成功')
     this.setRoseDialogVisible = false
    },
    //监听分配角色关闭对话框的事件
    setRoleDialogClosed() {
      this.selectedRoleId = ''
      this.userInfo = {}
    }
  },
}
</script>

<style></style>
